As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - AIRCRAFT RETURNED TO FIELD WHEN A SLIGHT BINDING WAS NOTED IN THE AILERON. MAINTENANCE INSPECTED THE AIRCRAFT AND REPOSITIONED THE SAFETY WIRE PIGTAILS ON THE AILERON SERVO. OPERATIONAL CHECK WAS PERFORMED AND WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.